| DQR ID | Subject | Data Streams Affected |
|---|---|---|
| D970627.1 | Software update on the AERI | sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpaerilbldiffC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaeri01engineerC1.a1 |
| D980414.1 | AERI data effected by failing detector cooler | sgpaeriC1.00, sgpaerich1C1.a1, sgpaerich1C1.a2, sgpaerich2C1.a1, sgpaerich2C1.a2, sgpaeriprofC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpaerisummaryC1.a1, sgpaerisummaryC1.a2, sgpqmeaeriprofC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerilblssC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaerilbldiffssC1.c1, sgpaeri01engineerC1.a1, sgpqmeaerimeansssC1.c1 |
| D980414.2 | Tumbleweed in AERI Field of View | sgpaeriC1.00, sgpaerich1C1.a1, sgpaerich1C1.a2, sgpaerich2C1.a1, sgpaerich2C1.a2, sgpaeriprofC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpaerisummaryC1.a1, sgpaerisummaryC1.a2, sgpqmeaeriprofC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerilblssC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaerilbldiffssC1.c1, sgpaeri01engineerC1.a1, sgpqmeaerimeansssC1.c1 |
| D980414.3 | CO2 Suppression of AERI Spectra | sgpaeriC1.00, sgpaerich1C1.a1, sgpaerich1C1.a2, sgpaerich2C1.a1, sgpaerich2C1.a2, sgpaeriprofC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpaerisummaryC1.a1, sgpaerisummaryC1.a2, sgpqmeaeriprofC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerilblssC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaerilbldiffssC1.c1, sgpaeri01engineerC1.a1, sgpqmeaerimeansssC1.c1 |
| D990920.1 | SGP/AERI/C1 - Reprocessed: radiance data | sgpaeri01C1.00, sgplblch1C1.c1, sgplblch2C1.c1, sgpaeriprofC1.c1, sgplblch1lsC1.c1, sgplblch2lsC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilbldifflsC1.c1 |
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 06/10/1997 | 0000 | 06/23/1997 | 2359 |
| Subject: | Software update on the AERI |
| DataStreams: | sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpaerilbldiffC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaeri01engineerC1.a1 |
| Description: | On June 10th, staff from the University of Wisconsin-Madison visited the SGP CART site to upgrade the software running on the AERI instrument. While there, they took the opportunity to perform some routine checks of the instrument. Due to these tests, data from 6/10/97 - 6/11/97 should not be ingested or used for scientific studies. The software installed was the same software as will be used on the next generation AERIs (AERI-Nexts). The AERI-Nexts have some improved hardware capabilities, which is taken advantage of by the new software. Unfortunately, as the AERI 01 at the CART site does not have these capabilities, NaNs resulted in a couple of fields in the sgpaeri01summaryC1.a1 platform. These NaNs are placeholders in arrays that were too long for the AERI01 but the correct length for the AERI-Nexts. All valid data (non-NaN data) is correct, and hence these NaNs should be ignored. A routine was modified on 6/24 which effectively fixes the problem (the size of the arrays written out is now determined by the hardware's capabilities, versus outputting a fixed length vector). |
| Measurements: | sgpaeri01ch1C1.a1:
sgpaerilbldifflsC1.c1:
sgpaerilblcloudsC1.c1:
sgpaeri01summaryC1.a1:
sgpaeri01engineerC1.a1:
sgpaeri01ch2C1.a1:
sgpaerilbldiffC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/04/1997 | 0000 | 10/05/1997 | 2330 |
| Subject: | AERI data effected by failing detector cooler |
| DataStreams: | sgpaeriC1.00, sgpaerich1C1.a1, sgpaerich1C1.a2, sgpaerich2C1.a1, sgpaerich2C1.a2, sgpaeriprofC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpaerisummaryC1.a1, sgpaerisummaryC1.a2, sgpqmeaeriprofC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerilblssC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaerilbldiffssC1.c1, sgpaeri01engineerC1.a1, sgpqmeaerimeansssC1.c1 |
| Description: | The AERI mechanical (Stirling Cycle) detector cooler exhibited abnormal behavior during this time period which allowed the detector temperature to fluctuate outside of the normal limits. This cooler had successfully operated for over 21 months at this point, well beyond the expected lifetime before refurbishment. Only the longwave (channel 1) AERI data appears to be effected as the shortwave (channel 2) detector is less sensitive to changes in detector temperature. THE COOLER WAS REPLACED AT 23:00 UTC ON 5 OCTOBER 1997 with a spare by UW personnel who were on site for the WVIOP. |
| Measurements: | sgpaeri01ch1C1.a1:
sgpaerich1C1.a2:
sgpaeri01engineerC1.a1:
sgpaerich2C1.a1:
sgpaerich2C1.a2:
sgpaeriprofC1.c1:
sgpaerilbldiffssC1.c1:
sgpaerich1C1.a1:
sgpqmeaerimeansC1.c1:
sgpaerilbldifflsC1.c1:
sgpqmeaerimeansssC1.c1:
sgpaeri01summaryC1.a1:
sgpaerilblcloudsC1.c1:
sgpqmeaerilblssC1.c1:
sgpaeri01ch2C1.a1:
sgpaerilbldiffC1.c1:
sgpaerisummaryC1.a1:
sgpaerisummaryC1.a2:
sgpqmeaerilblC1.c1:
sgpaeriC1.00:
sgpqmeaeriprofC1.c1:
sgpqmeaerilbllsC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/03/1997 | 1800 | 10/03/1997 | 2200 |
| Subject: | Tumbleweed in AERI Field of View |
| DataStreams: | sgpaeriC1.00, sgpaerich1C1.a1, sgpaerich1C1.a2, sgpaerich2C1.a1, sgpaerich2C1.a2, sgpaeriprofC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpaerisummaryC1.a1, sgpaerisummaryC1.a2, sgpqmeaeriprofC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerilblssC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaerilbldiffssC1.c1, sgpaeri01engineerC1.a1, sgpqmeaerimeansssC1.c1 |
| Description: | It's windy. It's Oklahoma. A tumbleweed somehow manages to fall into the AERI hatch and become lodged in the AERI sky view position. The AERI collects spectra of the tumbleweed until the problem is identified and corrected. In later processing this was shown to effect the AERI temperature retrievals during the period 18:00 - 22:00 UTC. |
| Measurements: | sgpaeri01ch1C1.a1:
sgpaerich1C1.a2:
sgpaeri01engineerC1.a1:
sgpaerich2C1.a1:
sgpaerich2C1.a2:
sgpaeriprofC1.c1:
sgpaerilbldiffssC1.c1:
sgpaerich1C1.a1:
sgpqmeaerimeansC1.c1:
sgpaerilbldifflsC1.c1:
sgpqmeaerimeansssC1.c1:
sgpaeri01summaryC1.a1:
sgpaerilblcloudsC1.c1:
sgpqmeaerilblssC1.c1:
sgpaeri01ch2C1.a1:
sgpaerilbldiffC1.c1:
sgpaerisummaryC1.a1:
sgpaerisummaryC1.a2:
sgpqmeaerilblC1.c1:
sgpaeriC1.00:
sgpqmeaeriprofC1.c1:
sgpqmeaerilbllsC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 09/30/1997 | 1600 | 09/30/1997 | 1700 |
| Subject: | CO2 Suppression of AERI Spectra |
| DataStreams: | sgpaeriC1.00, sgpaerich1C1.a1, sgpaerich1C1.a2, sgpaerich2C1.a1, sgpaerich2C1.a2, sgpaeriprofC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpaerisummaryC1.a1, sgpaerisummaryC1.a2, sgpqmeaeriprofC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerilblssC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilblcloudsC1.c1, sgpaerilbldifflsC1.c1, sgpaerilbldiffssC1.c1, sgpaeri01engineerC1.a1, sgpqmeaerimeansssC1.c1 |
| Description: | At about 1600 UTC 30 September 1997 (970930), the CO2 fire suppression system in the optical trailer went off and AERI-01 detected a local cooling due to the colder air being forced out of the trailer. Over the next few minutes, the CO2 accumulated outside the trailer causing lower transmission to space in the 15 micron region and AERI-01 therfore detected warmer temperatures closer to the surface (T profile decreases with altitude). As more CO2 exited the trailer, the atmosphere at 15 microns became more and more opaque and AERI looses nearly all responsivity in this region. AERI gradually regains responsivity over the next 30 minutes or so as the CO2 diffuses. The strongest absorbing on-line regions from ~650-680 wavenumbers are the last to recover around 1700 UTC. A graphical description of the effect described can be found at: http://www.iop.sgp.arm.gov/~davet/970930/aeri01/index.html Besides the enhanced CO2, the instrument is effected by the rapid change of temperature of inside the optical trailer. This makes all the AERI data during the period 970930 16:00 - 17:00 UTC questionable. |
| Measurements: | sgpaeri01ch1C1.a1:
sgpaerich1C1.a2:
sgpaeri01engineerC1.a1:
sgpaerich2C1.a1:
sgpaerich2C1.a2:
sgpaeriprofC1.c1:
sgpaerilbldiffssC1.c1:
sgpaerich1C1.a1:
sgpqmeaerimeansC1.c1:
sgpaerilbldifflsC1.c1:
sgpqmeaerimeansssC1.c1:
sgpaeri01summaryC1.a1:
sgpaerilblcloudsC1.c1:
sgpqmeaerilblssC1.c1:
sgpaeri01ch2C1.a1:
sgpaerilbldiffC1.c1:
sgpaerisummaryC1.a1:
sgpaerisummaryC1.a2:
sgpqmeaerilblC1.c1:
sgpaeriC1.00:
sgpqmeaeriprofC1.c1:
sgpqmeaerilbllsC1.c1:
|
| Start Date | Start Time | End Date | End Time |
|---|---|---|---|
| 10/01/1996 | 0000 | 06/30/1997 | 2359 |
| Subject: | SGP/AERI/C1 - Reprocessed: radiance data |
| DataStreams: | sgpaeri01C1.00, sgplblch1C1.c1, sgplblch2C1.c1, sgpaeriprofC1.c1, sgplblch1lsC1.c1, sgplblch2lsC1.c1, sgpaeri01ch1C1.a1, sgpaeri01ch2C1.a1, sgpqmeaerilblC1.c1, sgpaerilbldiffC1.c1, sgpqmeaerilbllsC1.c1, sgpqmeaerimeansC1.c1, sgpaeri01summaryC1.a1, sgpaerilbldifflsC1.c1 |
| Description: | Due to a software error in the real-time calibration software, the AERI-01 radiance data
between 10/96 and 6/97 were incorrectly calibrated. All of the AERI-01 radiance data
collected at the SGP central facility during this time period was corrupted by this software
error and were reprocessed to correct the radiance data. The error also affected all
derived products of the AERI radiance data. AERI data collected prior to and after this time
period was unaffected by this programming error.
The proper calibrated radiance spectra was recovered from the raw archived dataset through
post-processing. This reprocessing of the AERI data was carried out by the instrument
mentor at PNNL and confirmed independently by Univ. of Wisconsin. The reprocessed AERI
radiance data during the period 10/96 to 6/97 supercedes all previous versions of the AERI
data in all instances.
reprocessed, archived 9/99:
sgpaeri01C1.00
reprocessed, archived 10/99:
sgpaeri01ch1C1.a1
sgpaeri01ch2C1.a1
sgpaeri01engineerC1.a1
sgpaeri01summaryC1.a1
sgpaerilbldiffC1.c1
sgpaerilbldifflsC1.c1
sgplblch1C1.c0
sgplblch1C1.c1
sgplblch1lsC1.c0
sgplblch1lsC1.c1
sgplblch2C1.c0
sgplblch2C1.c1
sgplblch2lsC1.c0
sgplblch2lsC1.c1
sgpqmeaerilblC1.c1
sgpqmeaerilbllsC1.c1
sgpqmeaerimeansC1.c1
reprocessed, archived 11/99:
sgpaeriprofC1.c1
sgpqmeaeriprofC1.c1
not reprocessed:
sgpaerilblcloudsC1.c1
sgpaerilbldiffssC1.c1
sgpqmeaerilblssC1.c1
sgpqmeaerimeansssC1.c1 |
| Measurements: | sgpaeri01ch1C1.a1:
sgplblch2lsC1.c1:
sgpaeriprofC1.c1:
sgpqmeaerimeansC1.c1:
sgplblch1lsC1.c1:
sgpaerilbldifflsC1.c1:
sgpaeri01summaryC1.a1:
sgpaeri01C1.00:
sgpaeri01ch2C1.a1:
sgpaerilbldiffC1.c1:
sgplblch2C1.c1:
sgpqmeaerilblC1.c1:
sgplblch1C1.c1:
sgpqmeaerilbllsC1.c1:
|